River WA

Drainage Ditch Number 1

Washington • 46.7555, -124.0769

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

2 mi

3 km

Elevation

15′ → 9′

6 ft drop

Stream Order

Medium River

Slope

0.06%

3.2 ft/mi

Drainage

5 mi²

13 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

1 mi

1 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Data from USGS & NOAA for informational purposes only. More